Book-cover hinge



'H. C. MILLER.

BOOK COVER HINGE.

APPLICATION FILED SEPT-321921.

Patented Dec. 5, 1922.

Patented Doc. 5, M5323.

HENRY c. MI LER, or MILWAUKEE, W sconsin.

nooK-oovnn HINGE.

Application filed. September 3, 1921. Seri'al'No. 498,505.

Cover Hin es; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention pertains to improvements in book cover hinges and 1S directed more particularly to that typeof book commonly known as a loose leaf binder.

At the present time two methods are com-- monly employed for hingedly connecting book covers to the binder fixturesgnamely:- I

To rivet to the cover a metal hinge socket adapted to receive the pintle carried by the binder fixture, or to provide a flexible fabric or canvas connection between the cover and binder fixture. The former method While durable, is rather expensive, in that special dies are required to form the hinge and skilled labor is required to secure or attach the same to the cover board. The latter method, although a very cheap construction, is not substantial and the cover soon becomes loose with respect to the binder fixture. It is therefore primarily the object of the present invention to overcome these objections and provide a simple, inexpensive, and at the same time, durable hinge connection, which does not require skilled labor to assemble and which can be attached to the cover by suitable adhesive. This operation may be performed by un skilled labor.

A further object, incidental to the fore going, resides in the provision of a hinge of this character in which a rigid reinforcemerit adhered to the cover is employed to engage the pintle. A more specific object, is to provide a hinge constructed oi? stookmaterial, thereby eliminating the expense of dies and a special forming operation.

With the foregoing and other objects in view, my invention consists in what is here in shown and described, and more particularly pointed out and defined. by the appended claims.

Several methods of carrying out the present invention are illustrated in the accompanying drawing, in which Figure 1 is a plan view of the hinge asapplied to the loose leaf binder with parts may desire to broken away to more clearly illustrate the inventions Figure 2 is a transverse sectional view taken on the line '22' of Figure 1.

Figure 3 is a viewsimilar to Figure 2 showing a modified form of the invention.

Referring now more particularly to the drawing, the numeral 1 designates a binder fixture provided with the customary bind- 6 ing post lfto which leaves are secured in the usual manner. The ends of the binding fixture are provided with laterally project ing lugs 2 in which are secured the ends of apintle 4. It is obvious that while I have only shown lugs provided at the ends or" the binding fixture, in some instances I usecentral lugs in addition thereto. I i

' Surrounding the pintle is a metallic sleeve 5 which as shown at Figure 2 is nested in the concaved edge of the cover board 6, the latter having its corners cut away as shown at 7 to permit the same to be received between the ends of the lugs 2. Attention is directed to the fact, that while I have shown the edge of the cover board 6 as concave in order to form a seat for the sleeve 5, it is contemplated within the scope of the invention to make this edge straight in someinstances. c

As set forth in the foregoing objects, it has hitherto been customary to use an especially formed sleeve, and to secure the same to the cover board by riveting. In carrying out my invention 1 provide a binding strip 8 of paper or textile fabric, which is folded around the sleeve 5 and adhered to the cover board, to hold'the sleeve tightly inengagement with the edges thereof. This operation may be performed by unskilled operators, either manually or on what is commonly known in this particular art as a gluing machine, at the same time that the binding 9 is secured to the cover board. This binding may be of leather, buckram, or any suitable material commonly used for this purpose.

In the modified form of my invention as disclosed in Figure 3 of the drawing, I substitute for the sleeve 5 a metallic reinforcing strip 5, which I secure to the cover board 6 with any suitable adhesive. The plate 5 projects slightly past the edge of the cover board and in conjunction with the edge, forms a pocket to receive the pintle 4. A binding strip 8' is folded over the edge of Y r and adhered thereto. This serves cure the cover on the pintle and also assists in holding the reinforcing strip 5.

In both forms of my invention the reinforcing strip 5, or the sleeve 5, extend the entire length between the lugs 2 and abut the same, thereby preventing lateral movement of the cover on the pintle, and also serving as a brace between the lugs to prevent them from being bent inwardly.

From the foregoing it will be obvious,- that a very simple structure has been obtained which provides a durable and rigid hingeconnection between the cover board and binder post. Further, dueto the fact that I employ stock material as a reinforcing element the hinge is inexpensive and cheap to manufacture.

I claim as my invention 1. In a device of the character described, a binder fixture having laterally projecting lugs, a pintle carried by the lugs, a cover board having a rigid reinforcement adjacent one of its edges, said reinforcement engaging the pintle, and a binding strip folded over the edge and adhered to the cover to secure the same to the reinforcement.

52. In a device of the character described,

a binder fixture having laterally projecting lugs, a pint-1e carried by the lugs, a sleeve 1 surrounding the pintle, a cover board having a strip of mater al folded over one edge.

and secured thereto to enclose the sleeve surrounding the pintle, a cover board having a concave edge in which said sleeve is nested, a strip of material folded around the sleeve and adhered to the cover board so as to secure said sleeve rigidly thereto.

In testimony that I claim the foregoing I have hereunto set my hand at ltililwaukee in the county of Milwaukee and State of iwisconsin.

HENRY C. MILLER. 

